Doffing-brush



J. WOOLDRIDGE.

DOFFING BRUSH.

APPLICATION FILED 020.5, 1918.

Patented June 29, 1920.

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UNITED STATES PATENT OFFICE.

JOHN WOOLDRIDGE, 0F TEMPLE, TEXAS.

DOFFING-IBRUSH.

Application filed December 5, 1918. Serial No. 265,417.

To all whom it may concern:

Be it known that I, JOHN WOOLDRIDGE, a citizen of the United States, residing at Temple, in the county of Bell and State of Texas, have invented a new and useful Dofiing-Brush, of which the following is a specification.

This invention relates to dofiing brushes for cotton gins one of its objects being to provide a brush the dotting elements of which are held firmly between the saws of the gin.

Another object is to provide a brush the parts of which can be assembled readily and which will not get out of order readily.

WVith the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims, it being understood that various changes may be made in the construction and arrangement of the parts without departing from the spirit or sacrificing any of the advantages of the invention as set forth in the appended claims.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings- Figure 1 is a section through a portion of the dofling brush and showing the relative position of the saws thereto.

Fig. 2 is a horizontal section through a portion of the brush, the adjacent portions of the saws being shown in plan.

Fig. 8 is a detail view of one of the blank strips used in the formation of the brush.

Referring to the figures by characters of reference S designates some of the saws of a cotton gin and D designates a portion of a drum mounted for rotation adjacent thereto and constituting the body of the dofling brush. The drum is provided in its outer surface with longitudinal grooves d each of which is adapted to receive a metal strip 1. Regularly spaced tongues extend from the outer edge of each strip, as shown at 2 thus to form slots 3 therebetween for the reception of the saws, the slots being so proportioned and separated that the saws will not engage the edges thereof. From the outer end of each tongue extends a finger 4 and each finger is adapted to be bent back onto a tuft 5 of bristles extending transversely of and beyond the edges of the tongue, thereby to hold the tuft securely in place so that its two ends will engage the sides of adjoining saws and keep them clean. Obviously instead of using bristles, pieces of leather or the like can be utilized.

By arranging one of the strips 1 in each of the slots 03 the entire drum becomes an eilicient doifing element and will, when rotated, operate to remove lint from the saws. The bristles can of course be renewed easily by bending the fingers 4 and the strips 1 can be removed and others substituted when necessary.

What is claimed is 1. A dofling brush including a metal strip having broad spaced tongues extending from one edge thereof and forming saw receiving slots therebetween, flexible wiping elements resting upon said broad tongues and extending partly across the slots, and fingers projecting from the outer ends of the tongues and bent back thereonto and upon the wiping elements to clamp said elements upon the tongues, said fingers being narrower than the tongues.

2. A dofiing brush for cotton gins and the like including a drum having peripheral slots, strips seated in the slots and having spaced tongues outstanding therefrom transverse clusters of bristles resting on the respective tongues and extending beyond the side edges thereof, and fingers extending from the ends of the tongues and bent back over the clusters of bristles for clamping them upon the tongues, said fingers being narrower than the tongues.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses. 

